scispace - formally typeset
Search or ask a question
Author

Olivier Ribaux

Other affiliations: Université de Montréal
Bio: Olivier Ribaux is an academic researcher from University of Lausanne. The author has contributed to research in topics: Crime analysis & Crime scene. The author has an hindex of 24, co-authored 80 publications receiving 1865 citations. Previous affiliations of Olivier Ribaux include Université de Montréal.


Papers
More filters
Journal ArticleDOI
TL;DR: It is proposed to refocus the attention towards traces themselves, as remnants of a criminal activity, and their information content, to create the best condition for the development of forensic intelligence.

132 citations

Journal ArticleDOI
TL;DR: A long-term intensive modelling activity of the investigative and crime analysis process that crosses the boundaries of different disciplines has been initiated, and a framework that fully integrates forensic case data shows through examples the capital accumulated that may be put to use systematically.

129 citations

Journal ArticleDOI
TL;DR: The dominant notion of forensic science as a patchwork of disciplines primarily assisting the criminal justice system (defined as "forensics" in this article) is in crisis, or at least shows a...
Abstract: The dominant conception of forensic science as a patchwork of disciplines primarily assisting the criminal justice system (defined as ‘forensics’ in this article) is in crisis, or at least shows a ...

108 citations

Journal ArticleDOI
TL;DR: Attention is primarily drawn to an active and close collaboration between magistrates, forensic scientists, law enforcement investigators and crime analysts from different institutions with the aim of generating, using and validating relevant profiling case data as integral part of investigative and crime analysis processes.

100 citations

Journal ArticleDOI
TL;DR: The proposal for a model that promotes to better use knowledge available in the organisation for driving and supporting crime scene examination to follow other directions than the traditional path suggested by dominant movements in these fields is presented.

99 citations


Cited by
More filters
Journal ArticleDOI
TL;DR: Machine learning addresses many of the same research questions as the fields of statistics, data mining, and psychology, but with differences of emphasis.
Abstract: Machine Learning is the study of methods for programming computers to learn. Computers are applied to a wide range of tasks, and for most of these it is relatively easy for programmers to design and implement the necessary software. However, there are many tasks for which this is difficult or impossible. These can be divided into four general categories. First, there are problems for which there exist no human experts. For example, in modern automated manufacturing facilities, there is a need to predict machine failures before they occur by analyzing sensor readings. Because the machines are new, there are no human experts who can be interviewed by a programmer to provide the knowledge necessary to build a computer system. A machine learning system can study recorded data and subsequent machine failures and learn prediction rules. Second, there are problems where human experts exist, but where they are unable to explain their expertise. This is the case in many perceptual tasks, such as speech recognition, hand-writing recognition, and natural language understanding. Virtually all humans exhibit expert-level abilities on these tasks, but none of them can describe the detailed steps that they follow as they perform them. Fortunately, humans can provide machines with examples of the inputs and correct outputs for these tasks, so machine learning algorithms can learn to map the inputs to the outputs. Third, there are problems where phenomena are changing rapidly. In finance, for example, people would like to predict the future behavior of the stock market, of consumer purchases, or of exchange rates. These behaviors change frequently, so that even if a programmer could construct a good predictive computer program, it would need to be rewritten frequently. A learning program can relieve the programmer of this burden by constantly modifying and tuning a set of learned prediction rules. Fourth, there are applications that need to be customized for each computer user separately. Consider, for example, a program to filter unwanted electronic mail messages. Different users will need different filters. It is unreasonable to expect each user to program his or her own rules, and it is infeasible to provide every user with a software engineer to keep the rules up-to-date. A machine learning system can learn which mail messages the user rejects and maintain the filtering rules automatically. Machine learning addresses many of the same research questions as the fields of statistics, data mining, and psychology, but with differences of emphasis. Statistics focuses on understanding the phenomena that have generated the data, often with the goal of testing different hypotheses about those phenomena. Data mining seeks to find patterns in the data that are understandable by people. Psychological studies of human learning aspire to understand the mechanisms underlying the various learning behaviors exhibited by people (concept learning, skill acquisition, strategy change, etc.).

13,246 citations

Journal Article
TL;DR: The Commission's report really does add enormous amounts of history to the sound bites and 30-second visuals that have pervaded politics and the world assessment of the US since that time.
Abstract: Twenty-five years ago, as an American GP living and practising in Wales, I would watch BBC sports programmes, such as darts and bowls and snooker, all unknown to me and, therefore, fascinating. I always found it odd — pairings such as Scotland (or Wales) versus The Rest of the World. It either seemed overly ambitious for Scotland or slim pickings for the rest of the world. After the recent US presidential election, it appears as if it will continue to be the US versus The Rest of the World. Three books might help you, who are of ‘the rest of the world’, begin to grapple with what is going on in the US. Written from the short, medium, and long view, each has a somewhat parochial twist. Each also, however, contains a great deal of useful history. The 9/11 Commission Report refutes the old saw that nothing good can be written by a committee. The report is a remarkable book and its recent nomination as a finalist for the National Book Award is a first for a government document, and well deserved. What is contained in this report is well known by most of us — the cast of characters has been in the news for over 3 years. And the sequence of events and many of the details that were gleaned from the ongoing hearings have been contained in news stories, long and short. However, to have published what is known until this point in a single narrative, which is at once accessible and clearly written, is a truly historical achievement. Reading the events of the day — regarding the planes that crashed in the city of New York, as the rescue squads from police and fire departments move into place and act — is both familiar and detailed in a way that helps us understand better than I would ever have imagined the why and how of all the death and destruction. So much about those days have been parsed into documentaries — long analyses of causation of issues, like why the towers fell — that one would think that everything that could be written had been. But the Commission's report really does add enormous amounts of history to the sound bites and 30-second visuals that have pervaded politics and the world assessment of the US since that time. The report deals extensively and thoughtfully with the history of Islam, both ancient and recent, and describes the history of terrorism as it evolved from highjackings of the 1970s to the use of bombs and targeted destruction of military targets in the late 1980s and 1990s. Events that occurred in the time that preceded the attacks of 9/11 are written in a way that shows the convergence of intelligence reports, a long history of threats from Bin Laden, and many alerts and warnings (‘the system was blinking red’ in the words of Tenet, CIA director). The information about the movements of the terrorists in their planning and the worldwide involvement of cells, support systems, and finances makes it clear that these events were truly the result of a network that reaches virtually everywhere. After the attacks, reading of the efforts of the fire, police, and other rescue squads in New York adds specifics that are terrible and remarkable. On 9/11, I ran up and down the stairs between patients to watch on television as it was all happening. All of us who watched that day wondered what those people who were clearly doomed were thinking, feeling, and seeing. Their actual words in this report are not fiction, they are the words, for most the last words, of people who died as we watched. Their words are the hardest part of this long, detailed report to deal with. Much of the final third of the report is devoted to what a fire captain friend of mine once called a PFE — a post-fire evaluation — which he mandated for his squad after every fire. In a PFE, the entire squad reconstructed, relived, and discussed the events to see what could be improved next time. The 9/11 Commission engaged in a world-scale PFE. Although all US politicians state that they intend to follow the recommendations of The 9/11 Commission Report, the backing and filling is already well underway. What politician, for example, is going to agree that major conurbations, and political and tactical targets should receive preference over their hometown fire departments and that homeland security money should ‘not be used as a pork barrel’? Rather than bringing a grieving country together in a way that will make such events unlikely to happen again, the reactions from the report have begun to cleave along party lines once again. The 9/11 Commission was almost unique in its thoroughness, transparency, and its ability to focus on the real issue of terror and lawlessness. However, the extent to which a violent stateless ideology has negatively affected the tolerance of differences, the sense of community, and the level of civic discourse in the US means that terrorism has affected our neighborhoods as much as it has affected our country. And fear rather than determination, despite the President's stump speech, has become the dominant emotion. Robert Byrd, from his 45-year perspective in the US Senate, understands that cheques and balances are essential to avoid tragedy, even if they, at times, impede progress. His book, Losing America, contains several ‘under-the-table’ looks at Congress and the manipulations and arrogance of the coterie of ideologues who surround George W. Bush. Byrd, from the Southern tradition of politeness and respect, which often cloaks bar-room politics, is steeped in the history of the institution of the Senate. He is personally offended by Bush's lack of interest or curiosity in the legislative process prior to 9/11, and his dishonesty and deception afterwards. Byrd's address to the Senate on the eve of the war on Iraq was widely quoted and is contained in this book. While people marching in the streets made headlines, it was an 85-year-old senator, not previously known as an outraged progressive, who took on both the Administration for its hypocrisy and many of his colleagues for their lack of courage and principle. He voted against the war and continues to point out the dishonesty of the people who guide it. The book reads with a sensibility from another age. Although his own history is certainly not without problems, Senator Byrd's belief in the true democratic process, rather than the gun-barrel approach of George W. Bush, should be given the respect that he, and it, deserve. Arthur Schlesinger Jr has been writing history since 1946 and has Pulitzer prizes to prove he does it well. His voice is considered, thoughtful, and scholarly — as one might expect from a historian and distinguished teacher. Toward the end of his book War and the American Presidency, however, Schlesinger's voice rises with outrage at those who surround and influence George W. Bush, the ‘small group of Messianic statesman whose self righteousness bids fair to wreck our age’. He writes of the imperial presidencies of the early years of the country, which repressed dissent during wartime, and how the US moved from wars based on pique to engaging international diplomacy and internationalism. Schlesinger reminds us that all presidents since Wilson, with George W. Bush being the glaring exception, believed in statesmanship, diplomacy, alliances to guard against capricious choices and, when necessary, taking on common enemies. Much of Schlesinger's book, however, also chronicles the record of the current Administration which, by being ‘judge, jury, and executioner resurrects the imperial presidency’. An imperial presidency in the age of frigates and single-shot rifles cannot be compared with one that possesses weapons of mass destruction and a wooly-headed sense of divine guidance. We used to think of Henry Kissinger as the prototype for Dr Strangelove, but I wish Kubrick were still alive to do the remake with Dick Cheney and Donald Rumsfeld in mind. Needless to say, the recent election, instead of relegating George W. Bush and his hangers-on to the historical trashbin, has pushed them to the front of the international agenda. A secretive, defensive, unreflective president will now shape the world for our grandchildren. Each of these books elaborates on the ineffectiveness of Bush dealing with the real enemy while he digs deeper into a country where he is creating more enemies by the day. One has to ask why, instead of quietly writing their memoirs, two distinguished 87-year-old statesmen are raising the alarm and shaking us by the throat — like the aging Thomas Jefferson who, in his famous letter of 1820, said of the first compromise to try to divide the country between slave and free states: ‘this momentous question, like a firebell in the night, awakened and filled me with terror’. Byrd and Schlesinger hear the firebell and are ringing it to wake us up. Another quote that might better capture Bush and his legacy would be from the Bible he uses as justification for his policies: ‘He that troubleth his own house shall inherit the wind’ (Proverbs 11, 29).

962 citations

Journal ArticleDOI

499 citations

Book
27 Apr 2004
TL;DR: Fingerprint and Other Ridge Skin Impressions as mentioned in this paper has become a classic in the field of forensic science and has been updated with the latest technology and techniques, including current detection procedures, applicable processing and analysis methods, incorporating the expansive growth of literature on the topic since the publication of the original edition.
Abstract: Since its publication, the first edition of Fingerprints and Other Ridge Skin Impressions has become a classic in the field. This second edition is completely updated, focusing on the latest technology and techniques—including current detection procedures, applicable processing and analysis methods—all while incorporating the expansive growth of literature on the topic since the publication of the original edition. Forensic science has been challenged in recent years as a result of errors, courts and other scientists contesting verdicts, and changes of a fundamental nature related to previous claims of infallibility and absolute individualization. As such, these factors represent a fundamental change in the way training, identifying, and reporting should be conducted. This book addresses these questions with a clear viewpoint as to where the profession—and ridge skin identification in particular—must go and what efforts and research will help develop the field over the next several years. The second edition introduces several new topics, including Discussion of ACE-V and research results from ACE-V studies Computerized marking systems to help examiners produce reports New probabilistic models and decision theories about ridge skin evidence interpretation, introducing Bayesnet tools Fundamental understanding of ridge mark detection techniques, with the introduction of new aspects such as nanotechnology, immunology and hyperspectral imaging Overview of reagent preparation and application Chapters cover all aspects of the subject, including the formation of friction ridges on the skin, the deposition of latent marks, ridge skin mark identification, the detection and enhancement of such marks, as well the recording of fingerprint evidence. The book serves as an essential reference for practitioners working in the field of fingermark detection and identification, as well as legal and police professionals and anyone studying forensic science with a view to understanding current thoughts and challenges in dactyloscopy.

496 citations

18 Jun 2012
TL;DR: In this article, the authors present the following documents: Eni in 2011 (in English) Interim Consolidated Report as of June 30 pursuant to rule 154-ter paragraph 2 of Legislative Decree No. 58/1998 Corporate Governance Report and Remuneration Report (in Italian and English)
Abstract: Publications Financial Statement pursuant to rule 154-ter paragraph 1 of Legislative Decree No. 58/1998 Annual Report Annual Report on Form 20-F for the Securities and Exchange Commission Fact Book (in Italian and English) Eni in 2011 (in English) Interim Consolidated Report as of June 30 pursuant to rule 154-ter paragraph 2 of Legislative Decree No. 58/1998 Corporate Governance Report pursuant to rule 123-bis of Legislative Decree No. 58/1998 (in Italian and English) Remuneration Report pursuant to rule 123-ter of Legislative Decree No. 58/1998 (in Italian and English)

420 citations